Trilux has an ongoing mission to improve the design of light and improving the quality of light and efficiency. Â Within the workplace, light can play a key role in improving and retaining employee motivation, concentration and minimising tiredness. Business can also save money by replacing existing obsolete lighting set ups with new LED light management systems and contribute to social and ethical environmental considerations.
Lighting for offices is regulated by the European EN 12464-1 lighting standard and means work places must be optimally illuminated for all work tasks including VDU screens and reading documents. Reflections and shadowing can impair working at screens, and for this reason it is especially important to plan and assign lighting systems so that these are avoided. Therefore, if possible, the complete office area should be planned right from the beginning so that disturbing reflections are inhibited and daily work is not made unnecessarily difficult.
Different areas of the office environment have different lighting requirements with rooms such as offices requiring visual acuity and visual comfort whereas corridors and stairways require lighting safety.
As there are so many varied visual tasks in offices, demands for ideal lighting are highly diver. For work at computer screens, the light must not cause glare but must still provide sufficient brightness. For conference or meeting purposes, light must promote attention and create a pleasant atmosphere making sure that facial expressions on the vertical surface are clearly discernible.
Office lighting quality can be measured by various standards and combined to provide the ideal office lighting environment for workers:
- Visual Performance – lighting levels determine brightness and optical control to achieve disturbance free vision without direct or reflected glare
- Visual Comfort – a balanced ratio of luminance levels with colour rendering to achieve optimum room ambience
- Visual Ambience – light shadowing and direction makes surface structures visible
Office Lighting Energy Efficiency
A Trilux system implemented effectively will result in the intelligent use of light and means that light / energy is only used when it is required. The electronic control components can automatically switch the lighting on or off in response to daylight or the movement of workers around the office building. Up to an 80% efficiency can be achieved with a combination of Trilux LED lighting, presence sensors and brightness sensors resulting in a constant lighting level.
Energy Efficiency / Part L – the UK Building Regulations currently specifies a minimum ‘Lumens per watt’ efficiency level for light fittings to be compliant. However, this does not take into account any reduction in energy usage due to daylight linking or presence detection. There will be a new way of determining how energy efficient a building really is during actual usage using a Lighting Energy Numeric Indicator (LENI) calculation. This calculates energy consumption for lighting per square meter per year. (LENI= kWh/m2a)